一、泛域名解析和递归查询
如何实现泛域名解析
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递归查询的几种方法
1、在全局配置中配置
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2、使用dig命令实现递归查询
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二、实现DNS服务器之区域传送
1、使用dig命令可以查看区域内的所有数据
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2、在正向区域数据文件中，增加一条资源记录
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3、实现区域传送了
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4、allow-transfer {}; 可以定义哪个区域传送，构建一个地址为172.16.25.11的从DNS服务器，实现主、从服务器之间的区域传送
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650) this.width=650;” src=”http://cdn.verydemo.com/upload/2013_05_01/136737728530512.png” border=”0″ alt=”” />
5、说明从DNS服务器数据文件的同步位置
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6、编写从DNS服务器的配置文件，并启动服务
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6、查看主DNS服务器所在主机的日志，可以看见传送结果（查看日志非常重要）
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7、主DNS服务器的区数据文件已同步到从DNS服务器上
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8、在主DNS服务器的正向数据文件中新增一条A记录
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9、重新加载主DNS服务器，并查看日志记录
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10、查看从DNS服务器的日志信息，显示传送已成功
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三、DNS服务器之子域授权
1、在主DNS服务器上的正向区域数据文件中，增加子域授权记录
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2、启动主DNS服务器服务，并查看日志，查看从DNS服务器是否已接收传送
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3、只创建子域记录，不创建子域服务器是不能查看子域记录的
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4、创建子域服务器的配置文件，和正向解析区域数据文件
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5、在子域上查看子域服务器的NS记录
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